Colemanite and Allanite Physical Properties

Colemanite and Allanite Chemical Formula

While comparing Colemanite and Allanite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Colemanite and Allanite chemical formula.

• Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
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Colemanite and Allanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Colemanite and Allanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Colemanite and Allanite Optical Properties during the identification of gemstone. Specific gravity of Colemanite is 3.40-4.20 whereas that of Allanite is 3.40-4.20.